Air date: August 22nd, 2004
Tropes featured in the episode:
- Out-of-Context Eavesdropping: Percy overhears The Fat Controller say something about scrap and thought it meant he was to be scrapped). In the end, he discovers that The Fat Controller actually said that Percy was working too hard recently and so after taking some scrap metal to the smelters he would be given the somewhat easier job of carrying the mail for a week.
- You Are Better Than You Think You Are: Thomas gives Percy this encouragement:Thomas: "The Fat Controller would never scrap a really useful engine, and you, Percy, are a really useful engine!"